"Work out your own salvation with fear" and trembling

1. Philip. 2: 12
   12 Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling.
2. Alma 34: 37
   37 And now, my beloved brethren, I desire that ye should remember these things, and that ye should work out your salvation with fear before God, and that ye should no more deny the coming of Christ;
3. Morm. 9: 27
   27 O then despise not, and wonder not, but hearken unto the words of the Lord, and ask the Father in the name of Jesus for what things soever ye shall stand in need. Doubt not, but be believing, and begin as in times of old, and come unto the Lord with all your heart, and work out your own salvation with fear and trembling before him.